الفهرس 
Epidemiology of Bovine Ephemeral FeverOnly 14 pages are availabe for public view
 |  | from | 132 |  |  |
| | | from | 132 | | |
Abstract
BEFV is a non contiguous epizootic arthropode born viral disease of
cattle and water buffaloes, caused by single stranded RNA virus of genus
ephemerovirus and characterized by sudden onset fever, depression, stiffness
and lameness. The clinical severity of the disease is inconsistent with the
subsequent rapid recovery of the most affected animals.
The disease is widely distributed in tropical and subtropical area in
Africa, south Asia, Australia and enzootic in many countries including
Egypt, as many outbreaks occurred in the summer season of
1991,2000,2001,2004.
The disease occurred sporadically in 7 Egyptian governorates where
the suspected samples were collected in summer season in 2006 and 2009.
The total number of samples were 115 serum samples for antibody
detection, 95 blood with anticoagulant and 206 nasal swabs for virus
isolation. All samples were collected from small stalk held having small
number of animals and from dairy farm in Damietta.
The BEFV was isolated from buffy coat of the suspected animals on
vero cell line producing the characteristic CPE after 3 passages began by cell
vaccuolation and ended by detachment of the sheet from the glass 72 h post
inoculation. The result of virus isolation on tissue culture from nasal swabs
were 0 samples out of 206 giving positive result (0 %) while from buffy
coats 17 samples out of 95 giving positive result (17.81 %) respectively